T. V. Eusebio, V. K. Chey, V. Newman, and J. Catherinus. 1989. “A NOTE ON THE OPTIMAL TIME FOR GROUND COLLECTION OF <em>GMELINA</em> <em>ARBOREA</Em> ROXB. FRUITS”. Journal of Tropical Forest Science (JTFS) 1 (3):296-98. https://jtfs.frim.gov.my/jtfs/article/view/2170.